Personal care compositions comprising semiconductor nanocrystals and methods of making and using the same
View Patent ↗A personal care composition that includes a personal care ingredient and semiconductor nanocrystals. A method of protecting at least a portion of a body against ultraviolet radiation by applying a personal care composition is also provided.
1. A personal care composition comprising:
a personal care ingredient; and
a semiconductor nanocrystal dispersed or dissolved in the personal care ingredient, the semiconductor nanocrystal having a diameter between one and twenty nanometers.
2. The personal care composition of claim 1 , wherein the semiconductor nanocrystal is ZnSe, ZnS, ZnO, CdS, SrS, SrSe, GaN, InN, GaP, AlP or derivatives thereof.
3. The personal care composition of claim 2 , wherein the semiconductor nanocrystal is ZnSe.
4. The personal care composition of claim 1 , wherein, the personal care ingredient is fatty acids, fatty esters, waxes, oils, triglycerides, long chain alcohols, silicones, or any combination thereof.
5. The personal care composition of claim 1 , wherein the personal care composition is a hair conditioner, moisturizer, sun tan lotion, lipstick, or a hair gel.
6. The personal care composition of claim 1 , wherein the personal care composition substantially absorbs ultraviolet light.
7. A personal care composition comprising:
a personal care ingredient; and
a matrix material comprising a semiconductor nanocrystal having a diameter between one and twenty nanometers, wherein the matrix material is dispersed or dissolved in the personal care ingredient.
8. The personal care composition of claim 7 , wherein the semiconductor nanocrystal is ZnSe, ZnS, ZnO, CdS, SrS, SrSe, GaN, InN, GaP, or AlP.
9. The personal care composition of claim 8 , wherein the semiconductor nanocrystal is ZnSe.
10. The personal care composition of claim 7 , wherein the personal care ingredient is fatty acids, fatty esters, waxes, oils, triglycerides, long chain alcohols, silicones, or any combination thereof.
11. The personal care composition of claim 7 , wherein the personal care composition is a hair conditioner, moisturizer, sun tan lotion, lipstick, or a hair gel.
12. The personal care composition of claim 7 , wherein the personal care composition substantially absorbs ultraviolet light.
13. The personal care composition of claim 7 , wherein the matrix material is a polymer.
14. A method of manufacturing the personal care composition of claim 1 comprising:
providing a personal care ingredient; and
dissolving or dispersing a semiconductor nanocrystal in the personal care ingredient.
15. A method of manufacturing the personal care composition of claim 7 comprising:
providing a personal care ingredient;
providing a matrix material comprising a semiconductor nanocrystal; and
dissolving or dispersing the matrix material in the personal care ingredient.
16. A method of protecting at least a portion of a body against ultraviolet radiation, the method comprising:
applying a personal care composition to at least a portion of the body, wherein the personal care composition comprises a personal care ingredient and a semiconductor nanocrystal, the semiconductor nanocrystal having a diameter between one and twenty nanometers.